Home / 30,862.92-42,590.84-16,715.76

Finding the Fourth Proportional to 30,862.92, 42,590.84 and 16,715.76

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Solution

The fourth proportional to 30,862.92, 42,590.84 and 16,715.76 is: 23,067.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,862.92 : 42,590.84 = 16,715.76 : x
  2. Step 2: Convert to fraction form
    30,862.92/42,590.84 = 16,715.76/x
  3. Step 3: Cross multiply
    30,862.92x = 42,590.84 × 16,715.76
  4. Step 4: Simplify right side
    30,862.92x = 711,938,176.06
  5. Step 5: Solve for x
    x = 711,938,176.06/30,862.92
  6. Step 6: Final answer
    x = 23,067.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.